Topical medications can be harmful to your pets

https://nypost.com/2024/12/26/lifestyle/this-household-item-is-so-toxic-it-could-kill-your-pet-with-just-one-lick-i-had-no-idea/

I suspect that a lot of this is exaggerated; however, it is worth paying attention to little things like what’s on your hands when you pet licks you.